2.4 - National income, output and expenditure Flashcards
What is national income?
The total value of all goods and services produced by a country in a year.
What is the circular flow of income?
Consumer expenditure
+
Factors of production
________________>__________________
^ l
^ l
Households Firms
l ^
l ^
________________>_________________
Goods and services \+ Wages, rent, dividends
What is the difference between wealth and income?
Wealth - a stock of assets.
income - a flow of money.
What is the correlation between wealth and income?
Positive.
What are injections?
Additions to the circular flow of income.
What are withdrawls?
Leakages out of the circular flow of income.
What are the 3 types of injections?
Investment.
Government expenditure.
Exports.
What are the 3 types of withdrawals?
Savings.
Taxes.
Imports.
What is the multiplier?
Process by which a change in an injection causes a more than proportionate change in national income.
What is the multiplier equation?
Change in real GDP / change in injection
What is the impact of the multiplier on the economy?
Causes an injection to have magnified effect on GDP.
What would causes a multiplier to be relatively low?
A high marginal propensity to import.
What is the the marginal propensity to consume (MPC)?
The proportion of an increase
income that is spent.
What is the equation for MPC?
Change in consumption / change in income
How can the multiplier be calculated using MPC?
1 / 1-MPC